1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vitfil [10]
3 years ago
13

2. Use the Henderson-Hasselbalch equation to estimate the pH of a buffer solution that is composed of 20 mL of 10 M sodium forma

te and 20 mL of 1 M formic acid. (Note: the pKa of formic acid is 3.75).
Chemistry
1 answer:
Mkey [24]3 years ago
7 0

Answer:

pH of buffer =4.75

Explanation:

The pH of buffer solution is calculated using Henderson Hassalbalch's equation:

pH=pKa+log[\frac{[salt]}{[acid]}

Given:

pKa = 3.75

concentration of acid = concentration of formic acid = 1 M

concentration of salt =  concentration of sodium formate = 10 M

pH=3.75+log[\frac{10}{1}]=3.75+1=4.75

pH of buffer =4.75

You might be interested in
Write some salient features of rayon
Paha777 [63]

Answer:

Rayon Fiber is comfortable, soft to the skin, and has the moderate dry strength and abrasion resistance. One of the Rayon Fiber's strengths is its versatility and ability to blend easily with many fibers,sometimes to reduce cost, other times for luster, softness, or absorbency and resulting comfort.

7 0
3 years ago
Read 2 more answers
SOMEONE HELP ME PLEASE I’LL GIVE BRAINLY
miss Akunina [59]

Answer:

i think that describes cohesion or hydrolysis

Explanation:

7 0
2 years ago
Explain why the following are made of thermosetting plastics.
rusak2 [61]

Answer:

a: they're used in saucepan handles 'cause they don't soften when heated and also 'cause they cant be bent easily.

b: thermosetting plastics are bad electricity conductors. they don't get moulded and are also hard and strong.

6 0
3 years ago
Please help me on #2 giving BRAINLIEST!
Amiraneli [1.4K]

Answer:

basic

Explanation:

because H is hydrogen

3 0
2 years ago
A jet engine might use _____.
Y_Kistochka [10]
It would use rapid combustion
6 0
3 years ago
Read 2 more answers
Other questions:
  • In which kind of climate would frost wedging most liekly occur?
    6·2 answers
  • According to the Lewis dot structure shown here, how many valence electrons does chlorine have?
    5·1 answer
  • What tool did scientist use to first study the Earth’s interior
    13·1 answer
  • An aircraft is taking a group of skydivers up into the air. Evan is dressed in
    10·1 answer
  • If an element has 2 valence electrons, how many dots will be in the elements dot diagram?
    5·1 answer
  • 14. If ExGxP=Hx) solve for A<br> A<br> В
    8·1 answer
  • If you have a 12.0 gram steel ball at sea level and then take it up to mt. Fuji what will change?
    10·1 answer
  • What element forms an ion with an electronic configuration of [kr] and a –2 charge?
    5·2 answers
  • What is the pH of a solution that is 0.40 M NaBrO and 0.50 M HBrO (hypobromous acid) (Ka for HBrO = 2.3 x 10^-9)
    7·1 answer
  • Why does lithium form a 1 ion?.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!